Re: Air/Fuel meter (dwell/duty cycle gauges)

[Dan Bubb <jdbubb@ix.netcom.com>]

Check this out;
http://www.autospeed.com/A_0959/page1.html

It's the only "analog" gauge I've seen. It's not really analog, but it
looks analog. Anyway, I think it would look worse than LED's.
As far as measuring CIS duty cycle, I don't think this will give you any
useful info. For example at WOT, the full throttle switch is activated
and CIS goes to 60% (65%?) duty cycle. So, right when you really need
some input, it's telling you nothing.
Dan

Shawn Rader wrote:
> 
> I'd like to make an air fuel meter for my car before I start doinkin around
> with the CIS system, so that I can see where I'm runnin rich or lean.  I saw
> the design for one on Scirocco.org.  The thing I don't like about it is it
> uses a LED display, which I think would look tacky on the MK1 dash.  All the
> aftermarket displays use LED's too.
>   Anyway, what I was wondering is if anyone knows of any analog gauges that
> will display 4 cyl. dwell, or duty cycle?  This would be easy because I
> could hook it right up to the CIS test connector to measure Air/Fuel.  I
> want something that will look good on the dash.  I'm thinking of putting a
> piece of brushed aluminum (maybe carbon? what have other people used) where
> the radio used to be and putting in a A/F gauge, and possibly a oil temp
> gauge.  But I want analog.
>  Other options I can think of would be a voltage gauge that measures between
> 0-1V, or a analog A/F gauge that goes right to the o2 sensor.  I've looked
> around on the web but havn't been able to find any place that sells this
> stuff.
>  I need some ideas...
> 
> -Shawn
> 
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